#pragma once
#define _CRT_SECURE_NO_WARNINGS 1
#include"stack.h"
#include<stdio.h>
#include<stdbool.h>



//#define OK 1
//#define ERROR 0
//#define OVERFLOW -2
//
//typedef char SElemType;
//typedef int Status;
//typedef struct SNode
//{
//	SElemType data;
//	struct SNode* next;
//}SNode, * LinkStack;



bool In(char ch);

char Precede(char theta1, char theta2);

char Operate(char first, char theta, char second);

char EvaluteExpression();
